Could not load file or assembly 'System.Text.Json

Question

Hi, im new to syncfusion im trying blazor controls.

Im using Visual Studio 2019 and a Blazor Server App / Net Core 3.1

I followed the getting started guide:

https://ej2.syncfusion.com/blazor/documentation/getting-started/vs-blazor-server/

A got this error:

FileNotFoundException: Could not load file or assembly 'System.Text.Json, Version=4.0.1.1, Culture=neutral, PublicKeyTok

I tried this but error still there:

https://www.syncfusion.com/forums/148331/local-report-rendering-in-2-1-but-fails-in-3-0

Berly Christopher · Answer

Hi Robinson, 
  
Greetings from Syncfusion support.  
  
We have checked the reported issue and this issue is caused due to not installing the latest dot net core SDK version (3.1.2) in your machine for Syncfusion product version 17.4.54. So, we suggest you to install the latest SDK version to get rid of the reported issue. 
  
SDK downloading link: https://dotnet.microsoft.com/download/dotnet-core/3.1  
  
Please refer pre-requisites from the below documentation link. 
UG Link: https://ej2.syncfusion.com/blazor/documentation/getting-started/vs-blazor-server/?no-cache=1#prerequisites  
  
Regards, 
Berly B.C